设F₁，F₂是双曲线$\frac{x^2}{3}-y^2=1$的两个焦点，P在双曲线上，当△F₁PF₂的面积为2时，$\overrightarrow{P{F}_1}$$·$$\overrightarrow{P{F}_2}$的值为（　　）

选词填空阅读下面短文，从方框中选择单词，根据实际情况用其适当形式填空，使短文意思完整、通顺。每空一词，每词只能用一次。

 A man was tired of living in his small house in the country.  He wanted to sell it and buy a ____  one than the old one nearby. He tried to sell it for a long time, but____ wanted to buy it. So at last, he decided to use a house salesman. The salesman soon put a picture of the man's house on a magazine. ____  days later, the owner saw a very beautiful picture of the house, with a wonderful introduction to its gardens, on a magazine. After the house owner had read ____ the whole introduction, he at once called up the salesman and said,“I'm sorry, but I've decided not to sell this house after all. After ____  your introduction, now I know that It's just the kind of house I'm going to live in for the rest of my life.

列宁的新经济政策和罗斯福新政有何共同点？